WO2007102084A2

WO2007102084A2 - Postage stamp with microprocessor and identification by radio frequency

Info

Publication number: WO2007102084A2
Application number: PCT/IB2007/000577
Authority: WO
Inventors: Flávio GONSALVES DE OLIVEIRA
Original assignee: Rftreck Tecnologia E Logistica Avancada Ltda.
Priority date: 2006-03-08
Filing date: 2007-03-08
Publication date: 2007-09-13
Also published as: BRPI0705692A2; WO2007102084A3; BRPI0600430A

Abstract

The present invention relates to an Intelligent Postage Stamp (12), used for addressing in general, which combines the function of a Postage Stamp and a tracing and locating system employing radiofrequency with embarked processing, and with a memory to store addressing, plus the capability of processing information and communication with the management system of the logistics of the licensee that uses the Intelligent Postage Stamp.

Description

Title: "INTELLIGENT POSTAGE STAMP WITH IDENTIFICATION BY RADIO FREQUENCY"

Field of the invention

The present invention relates to a Microprocessed Intelligent Postage Stamp (IPS) used for addressing in general. This stamp combines the function of a postage stamp with that of a tracing and locating system using radiofrequency (RFID = Radiofrequency Identification) plus the computer processing components embarked in the IPS itself. The present invention is based on a an Intelligent Semi-Active system with a capability of interacting with the outside environment and embarked processing capacity, that is to say, the RFID severs to supply energy to a complex microcomputer system.

The system has independent memory assemblies, as the present-day computer systems are treated. It has a memory area designed for the configurations and identifications of the system itself. It may contain all the identification data of a contractor or specific date of its identification system.

Other memory blocks may be designed for specifications of the contracting user. The radiofrequency identification is effected with the system of processing the information embarked on the product, which still has memory space left for storing information on address, location, logistics, geodesy and general information on the displacement. In addition, there is the capability of processing the information and of communicating with the logistics managing system of the licensee that uses the intelligent postage stamp. Description of the prior art

At present, most postage stamps are mere prints for determining the value to be paid for delivery and transportation of mail, documents, packages, objects and the like. They are further a tool for registering events and cultural history of the Country. The current postage stamp system, in its operational process, does not have interaction with the technological environment and so it require an enormous human effort for effecting and carrying out the correlated logistic tasks. Thus, there is the drawback of the number of hours worked by human beings in the logistics process with a gigantic volume (by logistics one understands identification, transportation, delivery address, delivery, confirmation, geodesy and related tasks, of objects bearing Postage Stamps). The current model makes use of some improved methods but it is still a centuries-old method.

In the first case, the volume of the human interaction in the tasks that are directly or indirectly correlated with the postal logistics causes the value of the transportation of orders and objects to be much higher than it should actually be, besides causing failures in the process as a whole and an extension of the time for carrying out the task contracted by the sender.

In the second case, even if there are bar-code identification labels or information of any sort that will facilitate the tasks, there is still the need for the physical contact with the object, without active interaction of the latter with the computer tools in use.

We should further recall that the present-day technology has reached the effective limit of the systems of reducing the times applied for managing postal delivery, as well as with regard to the tools of measuring the Effective Quality of the Rendered Services. An attempt to modify the present postal system is the US Patent

6,741 ,178, which describes an electrically powered postage stamp that has an integrated-circuit chip with a data transmission and reception device (transceiver), a thin flat battery cell, a bipolar thin-film RF antenna. The postage stamp described in this patent does not have means for maintaining the energization of its integrated-circuit chip, nor does it have a microprocessor capable of providing intelligence to the system. Moreover, this stamp does not have a memory block, but only a very small memory spot for storing information such as destination address, return address and descriptions of the contents of the article being sent by mail. The methodology proposed above is limited to a element for sending codes or groups of identification characters. Indeed, there is the mere replacement of the bar code by a system that has some advantages, but continues to be a basic identification tool.

Thus, the stamp described in US 6,741 ,178 is a product that does not interact with the environment, but only responds when interrogated. It simply supplies information stored in its memory. There is also another problem, which refers to the fact that said stamp does not have a satisfactory electric charge to guarantee energization of its components for a satisfactory period of time, so as to enable the exchange of information with the RF system. In the absence of an energy accumulating system, the response time is limited to the time of exposure, decreasing almost to the point of eliminating the effective functionally of the system.

It should be noted that the systems of reading and managing orders, working at an ideal velocity, create a very narrow window for energization and subsequent operational activity of the circuit - TAG.

The methodology mentioned above refers to a passive RFID system where the latter has a number of operational impossibilities, for example: the sorting equipment does not work at its ideal performance. The velocity at which the letters are sorted diminishes excessively over the time of exposure to the radiofrequency waves at the frequency necessary for exciting the part that will generate sufficient energy for the TAG element to respond to the requests of the system.

On the other hand, document WO 00/16278 refers to a radiofrequency identification stamp comprising a substrate 24 with first 12 and second 18 surface, wherein an RFID circuit chip 20 and an antenna 16 are inserted into the latter. In the chip memory one stores sender information 601 , recipient information 602, information on the type of service 603 and charge instructions 604. the RFID chip used in this system is too simple and does not enable reasonable communication with the peripheral RFID system, nor does it enable interaction of the latter in addition to the supply of basic data, that is to say, it does not have the capability of interacting with the technological means or responding to the adequate operational distances. Moreover, this chip does not have a memory area that can be partitioned into segments for storing diversified information from different companies, service rendering firms and /or divergent safety coding systems. There is no mention of the existence of an area for the control of quality of displacement of parcel post, that is to say, the information relating to the course traveled, timing and registering control positions of the postal entities cannot be adequately stored, because there is no memory devices designed for this task.

The proposed system leaves a lot to be desired with regard to velocity and effective interaction with the environment, becoming inefficient in many cases of use in radiofrequency-excited narrow window.

French document FR 2805916 describes a postage stamp having an integrated circuit 5 to aid in sorting the mail, but it does not provide sufficient information for one to understand how such an objective is implemented.

With a view to solve the problems of the prior art, the present invention has been developed, by which one inserts into the postage stamp the whole fifth-generation computer technology and microprocessed managing software. In the inner layer of the postage stamp, one provides microcomputers, diodes, capacitors, mass-memory storing devices and antennas that enable the stamp to communicate with a network system, allowing each stamp to be an autonomous information management system, which controls its own displacement.

The proposed solution deals with an Intelligent Semi-Active system capable of interacting with the external environment and having embarked processing capacity, that is to say, the RFID serves as a supplier of energy to a complex microcomputer system. The system has independent memory assemblies, as present- day computer systems. It has a memory area intended for the configurations and identifications of the system itself, and may contain all the identification data of the contractor or specific data of its identification system.

The memory assembly functions as a solid memory bank where the following items are stored: a) the data of the operations carried out; b) a micro operating systems; c) activity-instruction generating systems; d) activity-instruction or route commands and syntaxes; e) the data or reports relating to activities performed.

It is made clear that the IPS is capable of containing an operating system dedicated to the commands of the tasks carried out by the system, or the commands necessary for carrying out the main task perfectly.

Thus, said Passive Postage Stamp and others are replaced by an Intelligent Postage Stamp - with a Semi-Active Intelligent technology - that enjoys all the features of a fifth-generation computer system, from an operating microsystem to even applications of activity with the external environment and of interaction with auxiliary systems. This computerized device enables the whole process, from posting to delivering, to be traced and the address information to be input and treated in the processing chip, causing the system of selecting, transporting, assembling the parcels and the delivery proper to be carried out by computerized systems of automated activity. Indeed, it is important that the information about each step until delivery should be available to the Sender and the Recipient on line and that the users of the system should have total control of each step of the transportation and of the operational logistics of sending the order and or the object.

Objectives of the invention

An objective of the present invention is to facilitate the performance of the logistical tasks of the postal area.

An objective of the present invention is to make the logistics process a procedure totally interconnected to time requisitions from service contractors.

An objective of the present invention is to implant all the requirements for management of activities and identification procedures, location, authentication and tracing of parcel post or other orders. An objective of the present invention is to cause stamps and identifiers of goods in displacement to be capable of communicating by radio systems and respond to location signals, storing in the main computer system and it themselves all the information regarding their displacement, their position at each determined time fraction, besides storing the data of the Recipient and of the Sender.

It is another objective of the present invention to enable each postage stamp or transportation identifier to be an independent communication and information-transportation entity.

It is a further objective of the present invention to enable interaction with the systems of sorting out and putting in order of delivery and postage, thus providing an exponential decrease in time in each task to be carried out.

It is a further objective of the present invention to be able to interact with the authorized technological environment for management of logistics tasks and ordering the communication functions.

It is a further objective of the present invention to be able to interact with systems that accept digital commands.

It is a further objective of the present invention to be able to control the delivery destination of the goods by means of control systems for controlling embarked displacements.

It is a further objective of the present invention to eliminate the need for complementary checking means for controlling the quality of the services rendered. Summary of the invention

The present invention relates to a microprocessed Postage

Stamp comprising at least two surfaces on at least one of which the following microcomponents is allocated: a diode, an antenna, a data storing unit, said stamp further comprising a capacitor, and a microprocessor containing an operating system. It should be noted that the data storing unit has memory blocks and that the memory blocks are subdivided into areas for storing diverse information. The antenna used on the stamp is preferably a spiral antenna, but other types may be used.

The microprocessor has a built-in software and such a software comprises applications that enable activity with the external environment and interaction with auxiliary systems.

The present invention also deals with a system of data interaction with a microprocessed postage stamp with radiofrequency identification, comprising an intelligent postage stamp with diverse data stored in its data storing unit, an external for emitting and receiving radiofrequency waves to excite its circuit and at least one external computer system for bidirectional communication therewith.

One can also understand that the present invention relates to a method of fully managing information on an intelligent postage stamp, which comprises the steps of allocating delivery address data on said stamp, actuating a microprocessing system existing on the stamp when it is subjected to an environment where there are radiofrequency waves at a determined frequency for its functioning, bidirectional communication of the stamp with any environment in which there is a system using radiofrequency. The allocation of data is carried out on a memory block processed with various memory areas, and actuating the microprocessed system existing on the stamp is carried out by means of a diode existing on the stamp. It should be noted that the actuation of the microprocessed system existing on the stamp is maintained by means of a capacitor comprised in the stamp. The bidirectional communication of the stamp with any environment in which there is a system using radiofrequency is established by means of a microprocessor comprised in the stamp.

Indeed, the invention is described as a microprocessed logical system, which embraces an intelligent postage stamp capable of communicating by radio systems and responding to location signals, storing in the computer system of the work/solution contractor and in itself all the information of its displacement, its position at each determined time fraction, besides being able of storing the data of the Recipient and of the Sender. The software implanted in the microprocessed computer system enable each postage stamp to be an independent communication and information- transport unit. The stamps interact with the sorting, delivery-ordering and posting systems, thus providing an exponential time decrease at each task to be performed.

An antenna system emits radiofrequency waves that excite the small antennas contained in the Intelligent Postage Stamp. This happens under the presence of these radiofrequencies, for example, of 916 Mhz (frequency determined for using the system). One should understand that the IPS can be adapted for any frequency which the client / user wishes to use, through a production system oriented to the commercial frequencies. One can develop IPS for the frequencies that are required, always bearing in mind the frequency x power relation and the application of the user, taking into consideration the means of utilization of the contractor.

The energization of the stamp begins through a Diode with the electric current necessary to actuate the microprocessor that processes the commands sent, sending, in a first operation, its individual and only data that are allocated in its TAGID (individual and only code of each IPS) that interact with the management systems for determining their position and verification of which IPS is being read. Complementary Sender and Recipient information may be inserted and read, since the IPS's have solid memory chips that allow reading and writing; the IPS have the characteristic of determining the purpose, be it divergent or not, for the available memory blocks. They have a special characteristic by which the second memory block may be divided into as many blocks as necessary for better preservation of the data or for the event that the same TAG will render service for divergent companies, purposes, data modeling, contracting users and / or different data reading and cryptography systems. Upon request of the user, one can further implement more solid memory blocks or decrease the number depending on their real purpose.

Each IPS has a capacitor capable of storing energy generated by the diode, that is to say, even out of the field of execution of the IPS it will respond to an inquiry or carry out communication with the external systems. The duration of the capacitor load depends on the execution design for meeting the demand of a determined contracting client, varying from hundredths of a second to a few minutes. Through the memory technology, either partitioned or dedicated, one can determine which reading was last effected, who executed it, the present location of the posted or send product and the data of Sender and Recipient. Indeed, the present postage stamp has memory blocks (assembly of memory areas) with areas that may be used for recoding a chip identifying code, information on how said chip will be used by the owner post office, storage of an operating system and a software for enabling this area to serve for controlling the quality of the displacement of the order. Brief description of the drawings The present invention will now be described in greater detail with reference to a preferred embodiment of the invention illustrated in the attached drawings, in which:

- Figure 1 is a front view of the Intelligent Postage Stamp with a print simulation; - Figure 2 is a front view of an Intelligent Postage Stamp without print, showing the layer with logical infrastructure of the system;

- Figure 3 is a back view of the Intelligent Postage Stamp, showing the surface that has self-adherence substances, laminated adhesives or special glues, according to the need of the user that contracts the solution;

- Figure 4 represents a summarized view of the topology for reading the Intelligent Postage Stamp;

- Figure 5 is a summarized view of a mode of topology for reading the Intelligent Postage Stamp; - Figure 6 is a summarized view of another embodiment of topology for reading the intelligent postage stamp;

- Figure 7 is a summarized view of the topology and scheme of the IPS software.

Detailed description of the drawing Figure 1 is a front view of the intelligent postage stamp 12, showing that the latter does not differ visually from a passive postage stamp system. In said figure 1 , one can see an outer area with seal reinforcement 7 to facilitate the handling, eliminate detachment error and isolate the internal microcomponents of the micro processed system. Generally, said external area is made with a seal reinforcement made of a high-strength polymer. The printing area 10 receives the same printing treatment and determination of face value of the Passive Postage Stamp, and one may use on this surface printing techniques that need greater resistance of the printing blade, that is to say, the IPS surface may be made from various types of materials, from paper to polymer having high resistance to printing and abrasives.

Figure 2 illustrates the components of the stamp 12 of the present invention. The components of said stamp are always inactive when not exposed to the Radiofrequency Waves at the correct excitation frequency. There is a capacitor 11 that stores energy to guarantee, after the IPS is excited and initiates the response process, a longer time of response data transmission, as well as to enable the IPS to process information for making decision or interact with the external environment. This intelligent management process for transmitting data is a unique characteristic of the stamp 12. The stamp of the present invention, upon being exposed to the correct frequency, generates an electric current through the Diode 4, which charges and activates the microprocessor 2. The microprocessor 2 provides the ease of being employed not only for primary activities, but also for actuation in complex activities or intended to perform tasks in a shorter time than the times required in its operational specification. When charged with the adequate electric current, it becomes operational, carrying out the requests sent by the radio system. In the first place, it is TAGID, that is, its single identification code, that determines who the latter is with respect to the launching thereof in the databank of the Application of Management of Displacement and Managing Control of Activities (a software known as Manager Pilar 1.0). The microprocessor 2, after being charged and carrying out the requests, can search for data in the memory chip 3. This is a solid read-and-write memory chip, which may be understood as being a block formed by a set of memory areas and serves, in short, as a data storing unit for data about the displacement or about the sender and recipient. Further, upon request of the licensee user, it can store all the displacement data to its full physical capacity. The memory capacity of the system may be implemented according to the need of the user, for instance, from 256 bits to 2 Kbits. An antenna for connection with the data network or with the RFID systems 5 is implanted in spiral form, to provide a longer physical length and consequently a larger signal reception area. It is the channel of interaction with the radiofrequency generating systems, which cause excitation of the Diode 4 and subsequent generation of energy for the microprocessor 2, and/or a physical means for propagating the signal for response of executed request to the Intelligent Postage Stamp.

The Lot and Use Licensee Identification Code 8 determines visually who is the licensee of the system in use and to which lot the Intelligent Postage Stamp belongs, so as to create a control system for controlling IPS and Licensees in use of the IPS itself. The terminations of the connections of the radiofrequency antenna 6 indicate the perfect functioning of the connections and the stability of the system in use. Each label has two Terminators, an active one connected directly to the antenna and a non-active one located at the side of the active one. Each label has one connection 9 between the Microprocessed system and the radiofrequency connection antenna 5.

Figure 3 illustrates the back part of the Intelligent Postage Stamp, showing a surface that has self-adherence substance, laminated adhesives or special glues, according to the need of the user that contracts the solution. For functioning of the Intelligent Postage Stamp, the sector or direction antennas allocated in the environment are connected to each element individually, according to the need of the user. Such antennas, by Serial Protocol, are connected in network through a multi-serial port system installed in computers described as servers and become integrated in the LAN of the client or even in the a WAN. In figure 4 one can se that the IPS's 12 effect their connection with the sector or direction antennas 13, and each individual element performs simultaneously its tasks requested through radiofrequency. It should be noted that these antennas are communication ports of the servers that provide communication with the internal or external network of the client 14. In this way, all the needs and tasks related to the control system of the client are effected in the communication with the IPS's. In figure 5 one can see the basic connections of the system and their correlations, and thus one can see that the IPS 12 is exposed to two types of radiofrequency signals, a frequency originating from a broad-field fixed antenna 15, while the other is generated by a portable antenna and / or a manual data-reading device 18; in the first type the IPS 12 is in communication with the broad-field antenna 15 or with environment data collection systems and can be effected in two different modes of control and collection of data, which are selected according to the need of the procedure dimensioned for that task. It can be said that an application for each type of transaction has its effectiveness dimensioned in the relationship that obeys the following parameters: Distance from which the information is collected, reading field Mode, maximum Number of suppliers of data to be read simultaneously.

In a first embodiment we use wide reading field directional antennas (WRFDA/ADCLL) 15. These directional antennas are indicated for free areas, where great amounts of information go through and one can carry out the reading of IPS data suppliers at a high speed. The radiofrequency emission field is more comprehensive both in dimensions and in spent power 14. This type of antenna can be connected in series to isolated PC's and to a network system with up to a hundred antennas. It is resistant to aggressive environments and offers average capacity of dynamic reading. Such an antenna is indicated for: physical control of people on large scale, physical control of goods in wide doors or toll barriers, physical control of goods in large rooms and / or sheds, physical control of goods and insertion of goods in work sectors, control of release of goods in service areas, monitoring of vehicles and fleets and monitoring of displacement in roads or where there is a continuous and constant flow.

Still examining figure 5 one can understand that there are a number of direct applications for this embodiment of connection with the IPS 12, for instance, let us see an application of environment control and linear displacement control. The BRFDA 19 can be used in a passage-control-and- displacement application - an embodiment applied to doors or sorting belts and control of destinations and displacements - a fundamental process of delivery logistics and separation of destinations. Another type of antenna 20 can be used in a counter management application, where entries and exits of IPS are controlled at places of controlled release or delivery and reception.

In the readings of the IPS one can use a portable radiofrequency device of the HandHeld model 18, which enables one to access the IPS's with all the functionality of the fixed system, with the advantages of WIFI 21 connections, thus creating a total interactivity with the computer system of the licensee. In this connection model the radiofrequency emission field is less comprehensive both in dimensions and in spent power 14. In cases of utilization of systems for controlling tickets and /or counter control or control systems oriented to small objects in invariable- direction displacement, the radiofrequency emission fields may be the same depending only on the design or the need of the contractor.

The whole system is connected by the network system of the company having access to LAN and WAN systems 17, which enables the IPS's to be an integral part of the data networks of the licensee.

In the Second Embodiment we use Narrow Reading Field Directional Antennas 20. This antenna is indicated for closed areas, where large controlled amounts of information passes, and one can effect the reading of IPS data suppliers at a middle and low speed. It can be connected in series to isolated PC'S. Such an antenna can be connected to a network system 17 with up to a hundred antennas; it is resistant to aggressive environments and has an average capacity of dynamic reading.

The system provides reading data in various data formats that are either variable or established in the standard TXT or in the standard desired by the contractor. One can effect the physical control of people, physical control of goods on narrow doors, physical control of goods on counters, physical control of goods in insertion of goods at work stations, liberation control of goods in attendance stations, places for receiving and delivering goods of small volume.

In figure 6, one can see the basic connections of the system and their correlations. Completing the explanation of figure 5, one adds to this figure the connection with the applications of management and control of the IPS's. In the Main Stack 23, one can see the application servers and in the latter all the control and management systems of the IPS system, the Application of Displacement Management and Managing Control of Activities is made by means of a software known as Manager Pilar 1.0 24. The results of the systems and their interfaces are made available in WEB systems 22 - for remote access in safe addresses of the mode https:// 25 or access to the same system by means of LAN's 17 directly connected to the control system that can be accessed via WEB 25. It should be noted that the systems are also available for use in LAN networks 17 in the system of server client for local entities.

The reading system can identify that the frequencies of the HandHeld 18 of WRFDA - Wide Reading Field Directional Antennas and NRFDA - Narrow Reading Field Directional Antennas may be superimposed and interact jointly without impairing the readings and the interactions of request and responses for each IPS, as well as have multiple reading and writing systems.

In figure 7 one can see the basic connections of the system and their correlations between the basic levels of the software layers. In the first software layer we can see the systems of connection with the external world

26. There one can find the communication protocols, as well as the systems of cryptography and directed interaction of the lower application layers. Below we can see the interconnection layers for the primary identification system, where one allocates the ID of the client and the basic information for validation of that IPS 12 in the corporate network of the client. Said layer receives the name of layer of application of the Primary Identification system

27. This layer is divided into two connections, wherein the Primary Instruction System of the System 29 is performed in the lower layer at the right of the internal allocation blocks, where the basic instructions of the applications that contain native functions of the IPS are carried out. In the side layer at the left 28, the applications of the Operating Microsystem or external communication and instruction port control system are activated, called also MiSisOper 28. In the layer right below we can see all the applications of native Instructions of the RFID System 30, where the control tasks and activities related to the pure and native RFID are carried out. Below, one can see the channels of communication with the upper systems, which emit to the external means responses to the requests compiled or instructions of the type "processed response information". The Locating Data 31 are returned through the channels on the right of the processing system and the Instructions Activities 32 or processed support systems are activated by the channels on the left of the processing system, wherein the two of them are led to the external communication means in a direct and synchronized manner with communication pulses. Data Instructions 33 are sent to the data accumulators for Data Importation 35 or Data Exportation 35 through the data inter-layer channels of greater operational performance. These data importers and exporters or cryptography modulators and decrypters are of continuous activity and complement the communication with the external environment for each information package sent to the external world or received from it.

Therefore, one should understand that the present invention and its component parts described above are part of a preferred embodiment and of examples of situations that could occur, the actual scope of the invention being defined in the accompanying claims.

Claims

1. A microprocessed postage stamp comprising at least two surfaces, on at least one of which the following microcomponents are allocated: - a diode,

- an antenna,

- a data storing unit, said stamp being characterized by further comprising:

- a capacitor; and - a microprocessor containing an operating system.

2. A postage stamp according to claim 1 , wherein the data storing unit has memory blocks.

3. A postage stamp according to claim 2, wherein the memory blocks are subdivided into areas for storing diverse information.

4. A postage stamp according to claim 1 , wherein the stamp is a spiral antenna.

5. A postage stamp according to claim 1 , wherein the microprocessor has a built-in software.

6. A postage stamp according to claim 5, wherein the software comprises applications that enable activity with the external environment and interaction with auxiliary systems.

7. A data interaction system for interaction with a microprocessed postage stamp with radiofrequency identification, characterized by comprising: - an intelligent postage stamp as defined in the preceding claims, with diverse data stored in its data storing unit;

- an external radiofrequency-wave emitting and receiving antenna for exciting its circuit;

- at least one external computer system for bidirectional communication therewith;

8. A system according to claim 7, wherein the external radiofrequency-wave emitting and receiving antenna is either a sectorial or a directional antenna, either allocated in an environment or portable.

9. A system according to claim 8, wherein the antennas may be of either wide or narrow field.

10. A system according to claim 7, wherein the postage stamp can be accessed by means of LAN's and WAN's.

11. A method for fully managing information on an intelligent postage stamp characterized by comprising the steps of:

- allocating diverse data in said stamp;

- actuating the microprocessed system existing on the stamp when it is subjected to an environment where there are radiofrequency waves at a determined frequency for its functioning; and

- bidirectional communication of the stamp with any environment in which there is a system that uses radiofrequency.

12. A method according to claim 11 , wherein the allocation of data is carried out in a microprocessed memory block with various memory areas.

13. A method according to claim 11 , wherein the actuation of the microprossed system existing on the stamp is carried out by means of a diode comprised in the stamp.

14. A method according to claim 13, wherein the actuation of the microprocessed system existing on the stamp is maintained by a capacitor comprised in the stamp.

15. A method according to claim 11 , wherein the bidirectional communication of the stamp with any environment in which there is a system that uses radiofrequency is established by means of a microprocessor comprised in the stamp.

16. A method according to claim 11 , wherein the diverse data allocated in the stamp comprise information about addressing, location, logistics, geodesy and general information about the displacement and identification of the stamp.